/Engine/Source/Runtime/Experimental/Iris/Core/Public/Iris/ReplicationSystem/ReplicationOperations.h
Serialize the state of all dirty members of an object and changemask to a Bitstream, delta compressed against the PrevObjectStateBuffer.
static void SerializeWithMaskDelta ( [FNetSerializationContext](API\Runtime\IrisCore\Iris\Serialization\FNetSerializationContext) & Context, const uint32 * ChangeMaskData, const uint8 *__restrict SrcObjectStateBuffer, const uint8 *__restrict PrevObjectStateBuffer, const FReplicationProtocol * Protocol )